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serial: earlycon: Extend earlycon command line option to support 64-bit addresses

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earlycon implementation used "unsigned long" internally, but there are systems
(ARM with LPAE) where sizeof(unsigned long) == 4 and uart is mapped beyond 4GiB
address range.

Switch to resource_size_t internally and replace obsoleted simple_strtoul() with
kstrtoull().

Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alexander Sverdlin 2016-09-02 13:20:21 +02:00 • committed by Greg Kroah-Hartman
parent 8f975fe49d
commit 46e36683f4
4 changed files with 14 additions and 9 deletions
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include/linux/serial_core.h
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@ -374,7 +374,7 @@ extern int of_setup_earlycon(const struct earlycon_id *match,
struct uart_port *uart_get_console(struct uart_port *ports, int nr,
struct console *c);
int uart_parse_earlycon(char *p, unsigned char *iotype, unsigned long *addr,
int uart_parse_earlycon(char *p, unsigned char *iotype, resource_size_t *addr,
char **options);
void uart_parse_options(char *options, int *baud, int *parity, int *bits,
int *flow);