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OMAP3 SDRC: add support for 2 SDRAM chip selects 

Some OMAP3 boards (Beagle Cx, Overo, RX51, Pandora) have 2
SDRAM parts connected to the SDRC.

This patch adds the following:
- add a new argument of type omap_sdrc_params struct*
to omap2_init_common_hw and omap2_sdrc_init for the 2nd CS params
- adapted the OMAP boards files to the new prototype of
omap2_init_common_hw
- add the SDRC 2nd CS registers offsets defines
- adapt the sram sleep code to configure the SDRC for the 2nd CS

Note: If the 2nd param to omap2_init_common_hw is NULL, then the
parameters are not programmed into the SDRC CS1 registers

Tested on 3430 SDP and Beagleboard rev C2 and B5, with
suspend/resume and frequency changes (cpufreq).

Signed-off-by: Jean Pihet <jpihet@mvista.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
This commit is contained in:
Jean Pihet 2009-07-24 19:43:25 -06:00 committed by paul
parent 4be3bd7849
commit 58cda884ec
21 changed files with 237 additions and 103 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/mach-omap2/board-2430sdp.c
View File

@ -141,7 +141,7 @@ static inline void board_smc91x_init(void)
static void __init omap_2430sdp_init_irq(void)
{
omap2_init_common_hw(NULL);
omap2_init_common_hw(NULL, NULL);
omap_init_irq();
omap_gpio_init();
}

2
arch/arm/mach-omap2/board-3430sdp.c
View File

@ -169,7 +169,7 @@ static struct platform_device *sdp3430_devices[] __initdata = {
static void __init omap_3430sdp_init_irq(void)
{
omap2_init_common_hw(hyb18m512160af6_sdrc_params);
omap2_init_common_hw(hyb18m512160af6_sdrc_params, NULL);
omap_init_irq();
omap_gpio_init();
}

2
arch/arm/mach-omap2/board-4430sdp.c
View File

@ -59,7 +59,7 @@ static void __init gic_init_irq(void)
static void __init omap_4430sdp_init_irq(void)
{
omap2_init_common_hw(NULL);
omap2_init_common_hw(NULL, NULL);
#ifdef CONFIG_OMAP_32K_TIMER
omap2_gp_clockevent_set_gptimer(1);
#endif

2
arch/arm/mach-omap2/board-apollon.c
View File

@ -250,7 +250,7 @@ out:
static void __init omap_apollon_init_irq(void)
{
omap2_init_common_hw(NULL);
omap2_init_common_hw(NULL, NULL);
omap_init_irq();
omap_gpio_init();
apollon_init_smc91x();

2
arch/arm/mach-omap2/board-generic.c
View File

@ -33,7 +33,7 @@
static void __init omap_generic_init_irq(void)
{
omap2_init_common_hw(NULL);
omap2_init_common_hw(NULL, NULL);
omap_init_irq();
}

2
arch/arm/mach-omap2/board-h4.c
View File

@ -270,7 +270,7 @@ static void __init h4_init_flash(void)
static void __init omap_h4_init_irq(void)
{
omap2_init_common_hw(NULL);
omap2_init_common_hw(NULL, NULL);
omap_init_irq();
omap_gpio_init();
h4_init_flash();

2
arch/arm/mach-omap2/board-ldp.c
View File

@ -270,7 +270,7 @@ static inline void __init ldp_init_smsc911x(void)
static void __init omap_ldp_init_irq(void)
{
omap2_init_common_hw(NULL);
omap2_init_common_hw(NULL, NULL);
omap_init_irq();
omap_gpio_init();
ldp_init_smsc911x();

3
arch/arm/mach-omap2/board-omap3beagle.c
View File

@ -282,7 +282,8 @@ static int __init omap3_beagle_i2c_init(void)
static void __init omap3_beagle_init_irq(void)
{
omap2_init_common_hw(mt46h32m32lf6_sdrc_params);
omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
mt46h32m32lf6_sdrc_params);
omap_init_irq();
#ifdef CONFIG_OMAP_32K_TIMER
omap2_gp_clockevent_set_gptimer(12);

2
arch/arm/mach-omap2/board-omap3evm.c
View File

@ -279,7 +279,7 @@ struct spi_board_info omap3evm_spi_board_info[] = {
static void __init omap3_evm_init_irq(void)
{
omap2_init_common_hw(mt46h32m32lf6_sdrc_params);
omap2_init_common_hw(mt46h32m32lf6_sdrc_params, NULL);
omap_init_irq();
omap_gpio_init();
omap3evm_init_smc911x();

3
arch/arm/mach-omap2/board-omap3pandora.c
View File

@ -310,7 +310,8 @@ static int __init omap3pandora_i2c_init(void)
static void __init omap3pandora_init_irq(void)
{
omap2_init_common_hw(mt46h32m32lf6_sdrc_params);
omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
mt46h32m32lf6_sdrc_params);
omap_init_irq();
omap_gpio_init();
}

3
arch/arm/mach-omap2/board-overo.c
View File

@ -360,7 +360,8 @@ static int __init overo_i2c_init(void)
static void __init overo_init_irq(void)
{
omap2_init_common_hw(mt46h32m32lf6_sdrc_params);
omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
mt46h32m32lf6_sdrc_params);
omap_init_irq();
omap_gpio_init();
}

2
arch/arm/mach-omap2/board-rx51.c
View File

@ -61,7 +61,7 @@ static struct omap_board_config_kernel rx51_config[] = {
static void __init rx51_init_irq(void)
{
omap2_init_common_hw(NULL);
omap2_init_common_hw(NULL, NULL);
omap_init_irq();
omap_gpio_init();
}

2
arch/arm/mach-omap2/board-zoom2.c
View File

@ -25,7 +25,7 @@
static void __init omap_zoom2_init_irq(void)
{
omap2_init_common_hw(NULL);
omap2_init_common_hw(NULL, NULL);
omap_init_irq();
omap_gpio_init();
}

35
arch/arm/mach-omap2/clock34xx.c
View File

@ -725,7 +725,9 @@ static int omap3_core_dpll_m2_set_rate(struct clk *clk, unsigned long rate)
u32 unlock_dll = 0;
u32 c;
unsigned long validrate, sdrcrate, mpurate;
struct omap_sdrc_params *sp;
struct omap_sdrc_params *sdrc_cs0;
struct omap_sdrc_params *sdrc_cs1;
int ret;
if (!clk || !rate)
return -EINVAL;
@ -743,8 +745,8 @@ static int omap3_core_dpll_m2_set_rate(struct clk *clk, unsigned long rate)
else
sdrcrate >>= ((clk->rate / rate) >> 1);
sp = omap2_sdrc_get_params(sdrcrate);
if (!sp)
ret = omap2_sdrc_get_params(sdrcrate, &sdrc_cs0, &sdrc_cs1);
if (ret)
return -EINVAL;
if (sdrcrate < MIN_SDRC_DLL_LOCK_FREQ) {
@ -765,12 +767,29 @@ static int omap3_core_dpll_m2_set_rate(struct clk *clk, unsigned long rate)
pr_debug("clock: changing CORE DPLL rate from %lu to %lu\n", clk->rate,
validrate);
pr_debug("clock: SDRC timing params used: %08x %08x %08x\n",
sp->rfr_ctrl, sp->actim_ctrla, sp->actim_ctrlb);
pr_debug("clock: SDRC CS0 timing params used:"
" RFR %08x CTRLA %08x CTRLB %08x MR %08x\n",
sdrc_cs0->rfr_ctrl, sdrc_cs0->actim_ctrla,
sdrc_cs0->actim_ctrlb, sdrc_cs0->mr);
if (sdrc_cs1)
pr_debug("clock: SDRC CS1 timing params used: "
" RFR %08x CTRLA %08x CTRLB %08x MR %08x\n",
sdrc_cs1->rfr_ctrl, sdrc_cs1->actim_ctrla,
sdrc_cs1->actim_ctrlb, sdrc_cs1->mr);
omap3_configure_core_dpll(sp->rfr_ctrl, sp->actim_ctrla,
sp->actim_ctrlb, new_div, unlock_dll, c,
sp->mr, rate > clk->rate);
if (sdrc_cs1)
omap3_configure_core_dpll(
new_div, unlock_dll, c, rate > clk->rate,
sdrc_cs0->rfr_ctrl, sdrc_cs0->actim_ctrla,
sdrc_cs0->actim_ctrlb, sdrc_cs0->mr,
sdrc_cs1->rfr_ctrl, sdrc_cs1->actim_ctrla,
sdrc_cs1->actim_ctrlb, sdrc_cs1->mr);
else
omap3_configure_core_dpll(
new_div, unlock_dll, c, rate > clk->rate,
sdrc_cs0->rfr_ctrl, sdrc_cs0->actim_ctrla,
sdrc_cs0->actim_ctrlb, sdrc_cs0->mr,
0, 0, 0, 0);
return 0;
}

5
arch/arm/mach-omap2/io.c
View File

@ -276,14 +276,15 @@ static int __init _omap2_init_reprogram_sdrc(void)
return v;
}
void __init omap2_init_common_hw(struct omap_sdrc_params *sp)
void __init omap2_init_common_hw(struct omap_sdrc_params *sdrc_cs0,
struct omap_sdrc_params *sdrc_cs1)
{
omap2_mux_init();
#ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once the clkdev is ready */
pwrdm_init(powerdomains_omap);
clkdm_init(clockdomains_omap, clkdm_pwrdm_autodeps);
omap2_clk_init();
omap2_sdrc_init(sp);
omap2_sdrc_init(sdrc_cs0, sdrc_cs1);
_omap2_init_reprogram_sdrc();
#endif
gpmc_init();

63
arch/arm/mach-omap2/sdrc.c
View File

@ -32,7 +32,7 @@
#include <mach/sdrc.h>
#include "sdrc.h"
static struct omap_sdrc_params *sdrc_init_params;
static struct omap_sdrc_params *sdrc_init_params_cs0, *sdrc_init_params_cs1;
void __iomem *omap2_sdrc_base;
void __iomem *omap2_sms_base;
@ -45,33 +45,49 @@ void __iomem *omap2_sms_base;
/**
* omap2_sdrc_get_params - return SDRC register values for a given clock rate
* @r: SDRC clock rate (in Hz)
* @sdrc_cs0: chip select 0 ram timings **
* @sdrc_cs1: chip select 1 ram timings **
*
* Return pre-calculated values for the SDRC_ACTIM_CTRLA,
* SDRC_ACTIM_CTRLB, SDRC_RFR_CTRL, and SDRC_MR registers, for a given
* SDRC clock rate 'r'. These parameters control various timing
* delays in the SDRAM controller that are expressed in terms of the
* number of SDRC clock cycles to wait; hence the clock rate
* dependency. Note that sdrc_init_params must be sorted rate
* descending. Also assumes that both chip-selects use the same
* timing parameters. Returns a struct omap_sdrc_params * upon
* success, or NULL upon failure.
* SDRC_ACTIM_CTRLB, SDRC_RFR_CTRL and SDRC_MR registers in sdrc_cs[01]
* structs,for a given SDRC clock rate 'r'.
* These parameters control various timing delays in the SDRAM controller
* that are expressed in terms of the number of SDRC clock cycles to
* wait; hence the clock rate dependency.
*
* Supports 2 different timing parameters for both chip selects.
*
* Note 1: the sdrc_init_params_cs[01] must be sorted rate descending.
* Note 2: If sdrc_init_params_cs_1 is not NULL it must be of same size
* as sdrc_init_params_cs_0.
*
* Fills in the struct omap_sdrc_params * for each chip select.
* Returns 0 upon success or -1 upon failure.
*/
struct omap_sdrc_params *omap2_sdrc_get_params(unsigned long r)
int omap2_sdrc_get_params(unsigned long r,
struct omap_sdrc_params **sdrc_cs0,
struct omap_sdrc_params **sdrc_cs1)
{
struct omap_sdrc_params *sp;
struct omap_sdrc_params *sp0, *sp1;
if (!sdrc_init_params)
return NULL;
if (!sdrc_init_params_cs0)
return -1;
sp = sdrc_init_params;
sp0 = sdrc_init_params_cs0;
sp1 = sdrc_init_params_cs1;
while (sp->rate && sp->rate != r)
sp++;
while (sp0->rate && sp0->rate != r) {
sp0++;
if (sdrc_init_params_cs1)
sp1++;
}
if (!sp->rate)
return NULL;
if (!sp0->rate)
return -1;
return sp;
*sdrc_cs0 = sp0;
*sdrc_cs1 = sp1;
return 0;
}
@ -83,13 +99,15 @@ void __init omap2_set_globals_sdrc(struct omap_globals *omap2_globals)
/**
* omap2_sdrc_init - initialize SMS, SDRC devices on boot
* @sp: pointer to a null-terminated list of struct omap_sdrc_params
* @sdrc_cs[01]: pointers to a null-terminated list of struct omap_sdrc_params
* Support for 2 chip selects timings
*
* Turn on smart idle modes for SDRAM scheduler and controller.
* Program a known-good configuration for the SDRC to deal with buggy
* bootloaders.
*/
void __init omap2_sdrc_init(struct omap_sdrc_params *sp)
void __init omap2_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
struct omap_sdrc_params *sdrc_cs1)
{
u32 l;
@ -103,7 +121,8 @@ void __init omap2_sdrc_init(struct omap_sdrc_params *sp)
l |= (0x2 << 3);
sdrc_write_reg(l, SDRC_SYSCONFIG);
sdrc_init_params = sp;
sdrc_init_params_cs0 = sdrc_cs0;
sdrc_init_params_cs1 = sdrc_cs1;
/* XXX Enable SRFRONIDLEREQ here also? */
l = (1 << SDRC_POWER_EXTCLKDIS_SHIFT) |

141
arch/arm/mach-omap2/sram34xx.S
View File

@ -36,7 +36,7 @@
.text
/* r4 parameters */
/* r1 parameters */
#define SDRC_NO_UNLOCK_DLL 0x0
#define SDRC_UNLOCK_DLL 0x1
@ -71,40 +71,71 @@
/*
* omap3_sram_configure_core_dpll - change DPLL3 M2 divider
* r0 = new SDRC_RFR_CTRL register contents
* r1 = new SDRC_ACTIM_CTRLA register contents
* r2 = new SDRC_ACTIM_CTRLB register contents
* r3 = new M2 divider setting (only 1 and 2 supported right now)
* r4 = unlock SDRC DLL? (1 = yes, 0 = no). Only unlock DLL for
* SDRC rates < 83MHz
* r5 = number of MPU cycles to wait for SDRC to stabilize after
* reprogramming the SDRC when switching to a slower MPU speed
* r6 = new SDRC_MR_0 register value
* r7 = increasing SDRC rate? (1 = yes, 0 = no)
*
* Params passed in registers:
* r0 = new M2 divider setting (only 1 and 2 supported right now)
* r1 = unlock SDRC DLL? (1 = yes, 0 = no). Only unlock DLL for
* SDRC rates < 83MHz
* r2 = number of MPU cycles to wait for SDRC to stabilize after
* reprogramming the SDRC when switching to a slower MPU speed
* r3 = increasing SDRC rate? (1 = yes, 0 = no)
*
* Params passed via the stack. The needed params will be copied in SRAM
* before use by the code in SRAM (SDRAM is not accessible during SDRC
* reconfiguration):
* new SDRC_RFR_CTRL_0 register contents
* new SDRC_ACTIM_CTRL_A_0 register contents
* new SDRC_ACTIM_CTRL_B_0 register contents
* new SDRC_MR_0 register value
* new SDRC_RFR_CTRL_1 register contents
* new SDRC_ACTIM_CTRL_A_1 register contents
* new SDRC_ACTIM_CTRL_B_1 register contents
* new SDRC_MR_1 register value
*
* If the param SDRC_RFR_CTRL_1 is 0, the parameters
* are not programmed into the SDRC CS1 registers
*/
ENTRY(omap3_sram_configure_core_dpll)
stmfd sp!, {r1-r12, lr} @ store regs to stack
ldr r4, [sp, #52] @ pull extra args off the stack
ldr r5, [sp, #56] @ load extra args from the stack
ldr r6, [sp, #60] @ load extra args from the stack
ldr r7, [sp, #64] @ load extra args from the stack
@ pull the extra args off the stack
@ and store them in SRAM
ldr r4, [sp, #52]
str r4, omap_sdrc_rfr_ctrl_0_val
ldr r4, [sp, #56]
str r4, omap_sdrc_actim_ctrl_a_0_val
ldr r4, [sp, #60]
str r4, omap_sdrc_actim_ctrl_b_0_val
ldr r4, [sp, #64]
str r4, omap_sdrc_mr_0_val
ldr r4, [sp, #68]
str r4, omap_sdrc_rfr_ctrl_1_val
cmp r4, #0 @ if SDRC_RFR_CTRL_1 is 0,
beq skip_cs1_params @ do not use cs1 params
ldr r4, [sp, #72]
str r4, omap_sdrc_actim_ctrl_a_1_val
ldr r4, [sp, #76]
str r4, omap_sdrc_actim_ctrl_b_1_val
ldr r4, [sp, #80]
str r4, omap_sdrc_mr_1_val
skip_cs1_params:
dsb @ flush buffered writes to interconnect
cmp r7, #1 @ if increasing SDRC clk rate,
cmp r3, #1 @ if increasing SDRC clk rate,
bleq configure_sdrc @ program the SDRC regs early (for RFR)
cmp r4, #SDRC_UNLOCK_DLL @ set the intended DLL state
cmp r1, #SDRC_UNLOCK_DLL @ set the intended DLL state
bleq unlock_dll
blne lock_dll
bl sdram_in_selfrefresh @ put SDRAM in self refresh, idle SDRC
bl configure_core_dpll @ change the DPLL3 M2 divider
bl enable_sdrc @ take SDRC out of idle
cmp r4, #SDRC_UNLOCK_DLL @ wait for DLL status to change
cmp r1, #SDRC_UNLOCK_DLL @ wait for DLL status to change
bleq wait_dll_unlock
blne wait_dll_lock
cmp r7, #1 @ if increasing SDRC clk rate,
cmp r3, #1 @ if increasing SDRC clk rate,
beq return_to_sdram @ return to SDRAM code, otherwise,
bl configure_sdrc @ reprogram SDRC regs now
mov r12, r5
mov r12, r2
bl wait_clk_stable @ wait for SDRC to stabilize
return_to_sdram:
isb @ prevent speculative exec past here
@ -149,7 +180,7 @@ configure_core_dpll:
ldr r12, [r11]
ldr r10, core_m2_mask_val @ modify m2 for core dpll
and r12, r12, r10
orr r12, r12, r3, lsl #CORE_DPLL_CLKOUT_DIV_SHIFT
orr r12, r12, r0, lsl #CORE_DPLL_CLKOUT_DIV_SHIFT
str r12, [r11]
ldr r12, [r11] @ posted-write barrier for CM
bx lr
@ -187,15 +218,34 @@ wait_dll_unlock:
bne wait_dll_unlock
bx lr
configure_sdrc:
ldr r11, omap3_sdrc_rfr_ctrl
str r0, [r11]
ldr r11, omap3_sdrc_actim_ctrla
str r1, [r11]
ldr r11, omap3_sdrc_actim_ctrlb
str r2, [r11]
ldr r12, omap_sdrc_rfr_ctrl_0_val @ fetch value from SRAM
ldr r11, omap3_sdrc_rfr_ctrl_0 @ fetch addr from SRAM
str r12, [r11] @ store
ldr r12, omap_sdrc_actim_ctrl_a_0_val
ldr r11, omap3_sdrc_actim_ctrl_a_0
str r12, [r11]
ldr r12, omap_sdrc_actim_ctrl_b_0_val
ldr r11, omap3_sdrc_actim_ctrl_b_0
str r12, [r11]
ldr r12, omap_sdrc_mr_0_val
ldr r11, omap3_sdrc_mr_0
str r6, [r11]
ldr r6, [r11] @ posted-write barrier for SDRC
str r12, [r11]
ldr r12, omap_sdrc_rfr_ctrl_1_val
cmp r12, #0 @ if SDRC_RFR_CTRL_1 is 0,
beq skip_cs1_prog @ do not program cs1 params
ldr r11, omap3_sdrc_rfr_ctrl_1
str r12, [r11]
ldr r12, omap_sdrc_actim_ctrl_a_1_val
ldr r11, omap3_sdrc_actim_ctrl_a_1
str r12, [r11]
ldr r12, omap_sdrc_actim_ctrl_b_1_val
ldr r11, omap3_sdrc_actim_ctrl_b_1
str r12, [r11]
ldr r12, omap_sdrc_mr_1_val
ldr r11, omap3_sdrc_mr_1
str r12, [r11]
skip_cs1_prog:
ldr r12, [r11] @ posted-write barrier for SDRC
bx lr
omap3_sdrc_power:
@ -206,14 +256,40 @@ omap3_cm_idlest1_core:
.word OMAP34XX_CM_REGADDR(CORE_MOD, CM_IDLEST)
omap3_cm_iclken1_core:
.word OMAP34XX_CM_REGADDR(CORE_MOD, CM_ICLKEN1)
omap3_sdrc_rfr_ctrl:
omap3_sdrc_rfr_ctrl_0:
.word OMAP34XX_SDRC_REGADDR(SDRC_RFR_CTRL_0)
omap3_sdrc_actim_ctrla:
omap3_sdrc_rfr_ctrl_1:
.word OMAP34XX_SDRC_REGADDR(SDRC_RFR_CTRL_1)
omap3_sdrc_actim_ctrl_a_0:
.word OMAP34XX_SDRC_REGADDR(SDRC_ACTIM_CTRL_A_0)
omap3_sdrc_actim_ctrlb:
omap3_sdrc_actim_ctrl_a_1:
.word OMAP34XX_SDRC_REGADDR(SDRC_ACTIM_CTRL_A_1)
omap3_sdrc_actim_ctrl_b_0:
.word OMAP34XX_SDRC_REGADDR(SDRC_ACTIM_CTRL_B_0)
omap3_sdrc_actim_ctrl_b_1:
.word OMAP34XX_SDRC_REGADDR(SDRC_ACTIM_CTRL_B_1)
omap3_sdrc_mr_0:
.word OMAP34XX_SDRC_REGADDR(SDRC_MR_0)
omap3_sdrc_mr_1:
.word OMAP34XX_SDRC_REGADDR(SDRC_MR_1)
omap_sdrc_rfr_ctrl_0_val:
.word 0xDEADBEEF
omap_sdrc_rfr_ctrl_1_val:
.word 0xDEADBEEF
omap_sdrc_actim_ctrl_a_0_val:
.word 0xDEADBEEF
omap_sdrc_actim_ctrl_a_1_val:
.word 0xDEADBEEF
omap_sdrc_actim_ctrl_b_0_val:
.word 0xDEADBEEF
omap_sdrc_actim_ctrl_b_1_val:
.word 0xDEADBEEF
omap_sdrc_mr_0_val:
.word 0xDEADBEEF
omap_sdrc_mr_1_val:
.word 0xDEADBEEF
omap3_sdrc_dlla_status:
.word OMAP34XX_SDRC_REGADDR(SDRC_DLLA_STATUS)
omap3_sdrc_dlla_ctrl:
@ -223,3 +299,4 @@ core_m2_mask_val:
ENTRY(omap3_sram_configure_core_dpll_sz)
.word . - omap3_sram_configure_core_dpll

3
arch/arm/plat-omap/include/mach/io.h
View File

@ -228,7 +228,8 @@ extern void omap1_map_common_io(void);
extern void omap1_init_common_hw(void);
extern void omap2_map_common_io(void);
extern void omap2_init_common_hw(struct omap_sdrc_params *sp);
extern void omap2_init_common_hw(struct omap_sdrc_params *sdrc_cs0,
struct omap_sdrc_params *sdrc_cs1);
#define __arch_ioremap(p,s,t) omap_ioremap(p,s,t)
#define __arch_iounmap(v) omap_iounmap(v)

11
arch/arm/plat-omap/include/mach/sdrc.h
View File

@ -30,6 +30,10 @@
#define SDRC_ACTIM_CTRL_A_0 0x09c
#define SDRC_ACTIM_CTRL_B_0 0x0a0
#define SDRC_RFR_CTRL_0 0x0a4
#define SDRC_MR_1 0x0B4
#define SDRC_ACTIM_CTRL_A_1 0x0C4
#define SDRC_ACTIM_CTRL_B_1 0x0C8
#define SDRC_RFR_CTRL_1 0x0D4
/*
* These values represent the number of memory clock cycles between
@ -102,8 +106,11 @@ struct omap_sdrc_params {
u32 mr;
};
void __init omap2_sdrc_init(struct omap_sdrc_params *sp);
struct omap_sdrc_params *omap2_sdrc_get_params(unsigned long r);
void __init omap2_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
struct omap_sdrc_params *sdrc_cs1);
int omap2_sdrc_get_params(unsigned long r,
struct omap_sdrc_params **sdrc_cs0,
struct omap_sdrc_params **sdrc_cs1);
#ifdef CONFIG_ARCH_OMAP2

23
arch/arm/plat-omap/include/mach/sram.h
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@ -21,11 +21,12 @@ extern void omap2_sram_reprogram_sdrc(u32 perf_level, u32 dll_val,
u32 mem_type);
extern u32 omap2_set_prcm(u32 dpll_ctrl_val, u32 sdrc_rfr_val, int bypass);
extern u32 omap3_configure_core_dpll(u32 sdrc_rfr_ctrl,
u32 sdrc_actim_ctrla,
u32 sdrc_actim_ctrlb, u32 m2,
u32 unlock_dll, u32 f, u32 sdrc_mr,
u32 inc);
extern u32 omap3_configure_core_dpll(
u32 m2, u32 unlock_dll, u32 f, u32 inc,
u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0,
u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0,
u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1,
u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1);
/* Do not use these */
extern void omap1_sram_reprogram_clock(u32 ckctl, u32 dpllctl);
@ -59,12 +60,12 @@ extern void omap243x_sram_reprogram_sdrc(u32 perf_level, u32 dll_val,
u32 mem_type);
extern unsigned long omap243x_sram_reprogram_sdrc_sz;
extern u32 omap3_sram_configure_core_dpll(u32 sdrc_rfr_ctrl,
u32 sdrc_actim_ctrla,
u32 sdrc_actim_ctrlb, u32 m2,
u32 unlock_dll, u32 f, u32 sdrc_mr,
u32 inc);
extern u32 omap3_sram_configure_core_dpll(
u32 m2, u32 unlock_dll, u32 f, u32 inc,
u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0,
u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0,
u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1,
u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1);
extern unsigned long omap3_sram_configure_core_dpll_sz;
#endif

30
arch/arm/plat-omap/sram.c
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@ -373,20 +373,26 @@ static inline int omap243x_sram_init(void)
#ifdef CONFIG_ARCH_OMAP3
static u32 (*_omap3_sram_configure_core_dpll)(u32 sdrc_rfr_ctrl,
u32 sdrc_actim_ctrla,
u32 sdrc_actim_ctrlb,
u32 m2, u32 unlock_dll,
u32 f, u32 sdrc_mr, u32 inc);
u32 omap3_configure_core_dpll(u32 sdrc_rfr_ctrl, u32 sdrc_actim_ctrla,
u32 sdrc_actim_ctrlb, u32 m2, u32 unlock_dll,
u32 f, u32 sdrc_mr, u32 inc)
static u32 (*_omap3_sram_configure_core_dpll)(
u32 m2, u32 unlock_dll, u32 f, u32 inc,
u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0,
u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0,
u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1,
u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1);
u32 omap3_configure_core_dpll(u32 m2, u32 unlock_dll, u32 f, u32 inc,
u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0,
u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0,
u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1,
u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1)
{
BUG_ON(!_omap3_sram_configure_core_dpll);
return _omap3_sram_configure_core_dpll(sdrc_rfr_ctrl,
sdrc_actim_ctrla,
sdrc_actim_ctrlb, m2,
unlock_dll, f, sdrc_mr, inc);
return _omap3_sram_configure_core_dpll(
m2, unlock_dll, f, inc,
sdrc_rfr_ctrl_0, sdrc_actim_ctrl_a_0,
sdrc_actim_ctrl_b_0, sdrc_mr_0,
sdrc_rfr_ctrl_1, sdrc_actim_ctrl_a_1,
sdrc_actim_ctrl_b_1, sdrc_mr_1);
}
/* REVISIT: Should this be same as omap34xx_sram_init() after off-idle? */